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A reinforced concrete ultra-short column

A technology of reinforced concrete and concrete columns, applied in the direction of columns, pillars, pier columns, etc., can solve the problems of poor ductility, high rigidity, shear failure, etc., and achieve the effects of improving shear resistance, installation efficiency, and structural strength

Active Publication Date: 2021-07-20
广州市天作建筑规划设计有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The stiffness of short columns and ultra-short columns is much greater than that of ordinary members, and their ductility is poor, so they are prone to shear failure in earthquakes

Method used

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  • A reinforced concrete ultra-short column
  • A reinforced concrete ultra-short column
  • A reinforced concrete ultra-short column

Examples

Experimental program
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Effect test

Embodiment 1

[0036] Such as Figure 1 to Figure 2 As shown, a kind of reinforced concrete ultra-short column disclosed by the present invention comprises a concrete column 1, the cross section of which is rectangular, and a reinforced structure is embedded in the concrete column 1, and the reinforced structure includes a plurality of steel bars arranged along the length direction of the concrete column 1. Longitudinal reinforcement 21 and diagonal diagonal reinforcement 22.

[0037] Wherein the longitudinal steel bars 21 are circumferentially arranged along the four sides of the concrete column 1 . The four sides of the concrete column 1 are all provided with diagonal tendons 22 inclined toward the opposite sides (such as image 3 shown), both ends of the diagonal oblique bars 22 are provided with parts parallel to the longitudinal reinforcement bars 21, and the parts parallel to the longitudinal reinforcement bars 21 at both ends of the diagonal oblique bars 22 are in the same plane as t...

Embodiment 2

[0046] The difference between this embodiment and the first embodiment is that the end of the first connecting rod 311 is rotatably connected with a threaded sleeve 5 with an internal thread, and the end of the second connecting rod 321 is provided with an external thread mating with the threaded sleeve 5 . A connecting rod 311 is connected to the second connecting rod 321 by threading the threaded sleeve 5 to the second connecting rod 321 . Therefore, a good connection effect can be achieved without welding the first connecting rod 311 and the second connecting rod 321 , and the threaded connection is easy to install, reduces construction procedures, and improves construction efficiency.

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Abstract

The invention relates to a reinforced concrete ultra-short column, which includes a concrete column whose cross section is rectangular, and a steel bar structure is arranged inside the concrete column, the steel bar structure includes several steel bars and diagonal bars, and the longitudinal steel bars are along the four sides of the concrete column. Arranged in the circumferential direction, the concrete column is sleeved with multiple layers of stirrups along the length direction, and any two or more relative longitudinal reinforcements or diagonal diagonal reinforcements are sleeved with stirrups. With the above technical solution, the steel bar structure includes several longitudinal steel bars and diagonal bars arranged along the length direction of the concrete column. The diagonal bars improve the ductility of the concrete column, thereby increasing the lateral shear capacity of the concrete column and reducing the probability of shear failure. . The longitudinal reinforcement improves the toughness and bending resistance of the concrete column. Any two or more relative longitudinal reinforcements or diagonal diagonal reinforcements are sleeved with stirrups, which can reduce the probability of shear-compression failure of the concrete column. Improves the overall strength of the concrete column.

Description

technical field [0001] The invention relates to the technical field of buildings, in particular to a reinforced concrete ultra-short column. Background technique [0002] At present, in general buildings, the damage of short columns is very serious, and its damage is an important reason for the damage or even collapse of reinforced concrete frame structures. In large buildings, due to the large vertical load, the column section is often controlled by the axial compression ratio. If the column section is large, it is easy to form a short or ultra-short column, which becomes weak and alleviates the problem of seismic resistance. [0003] A short column usually refers to a column with a shear-span ratio less than 2 and greater than 1.5, and a column with a shear-span ratio less than or equal to 1.5 is called an ultra-short column. The stiffness of short columns and ultra-short columns is much higher than that of ordinary members, and their ductility is poor, so they are prone ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E04C3/34E04B1/98E04H9/02
CPCE04C3/34E04H9/025
Inventor 金雪峰
Owner 广州市天作建筑规划设计有限公司